Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Assets
Amortized cost of fixed maturity securities available-for-sale	$ 302,624	$ 297,655
Amortized cost of fixed maturity securities valuation allowances	187	0
Contractholder-directed equity securities and fair value option securities relating to variable interest entities	11,145	13,102
Mortgage loans valuation allowances	464	353
Mortgage loans held-for-sale	0	59
Mortgage Loans on Real Estate, Commercial and Consumer, Net	81,344	80,529
Real estate held-for-sale	144	127
Other Invested Assets - Leveraged and Direct Financing Leases	2,019	2,299
Other invested assets relating to variable interest entities	27,839	19,015
Cash and cash equivalents relating to variable interest entities	24,094	16,598
Premiums, reinsurance and other receivables relating to variable interest entities	21,224	20,443
Other assets relating to variable interest entities	10,617	10,518
Liabilities
Long-term debt, at estimated fair value, relating to variable interest entities	14,510	13,466
Other liabilities relating to variable interest entities	$ 27,570	$ 24,179
MetLife, Inc.’s stockholders’ equity:
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, aggregate liquidation preference	$ 4,405	$ 3,405
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	3,000,000,000	3,000,000,000
Common stock, shares issued	1,180,575,685	1,177,680,299
Common stock, shares outstanding	907,568,876	915,338,098
Treasury stock, shares	273,006,809	262,342,201
Residential mortgage loans - FVO
Assets
Mortgage Loans on Real Estate, Commercial and Consumer, Net	$ 180	$ 188
Variable interest entities
Assets
Contractholder-directed equity securities and fair value option securities relating to variable interest entities	3	3
Other invested assets relating to variable interest entities	301	290
Cash and cash equivalents relating to variable interest entities	12	12
Premiums, reinsurance and other receivables relating to variable interest entities	2	4
Other assets relating to variable interest entities	2	2
Liabilities
Long-term debt, at estimated fair value, relating to variable interest entities	5	5
Other liabilities relating to variable interest entities	$ 1	$ 1